/**
* QUnit v1.9.0pre - A JavaScript Unit Testing Framework
*
* http://docs.jquery.com/QUnit
*
* Copyright 2012 jQuery Foundation and other contributors
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
* Pulled Live from Git Mon Jul  9 21:30:01 UTC 2012
* Last Commit: b0c3da8d09b1dcbe5dd0877e27386f4b9e8050a1
*/

(function (window) {

    var QUnit,
	config,
	onErrorFnPrev,
	testId = 0,
	fileName = (sourceFromStacktrace(0) || "").replace(/(:\d+)+\)?/, "").replace(/.+\//, ""),
	toString = Object.prototype.toString,
	hasOwn = Object.prototype.hasOwnProperty,
	defined = {
	    setTimeout: typeof window.setTimeout !== "undefined",
	    sessionStorage: (function () {
	        var x = "qunit-test-string";
	        try {
	            sessionStorage.setItem(x, x);
	            sessionStorage.removeItem(x);
	            return true;
	        } catch (e) {
	            return false;
	        }
	    } ())
	};

    function Test(settings) {
        extend(this, settings);
        this.assertions = [];
        this.testNumber = ++Test.count;
    }

    Test.count = 0;

    Test.prototype = {
        init: function () {
            var a, b, li,
        tests = id("qunit-tests");

            if (tests) {
                b = document.createElement("strong");
                b.innerHTML = this.name;

                // `a` initialized at top of scope
                a = document.createElement("a");
                a.innerHTML = "Rerun";
                a.href = QUnit.url({ testNumber: this.testNumber });

                li = document.createElement("li");
                li.appendChild(b);
                li.appendChild(a);
                li.className = "running";
                li.id = this.id = "qunit-test-output" + testId++;

                tests.appendChild(li);
            }
        },
        setup: function () {
            if (this.module !== config.previousModule) {
                if (config.previousModule) {
                    runLoggingCallbacks("moduleDone", QUnit, {
                        name: config.previousModule,
                        failed: config.moduleStats.bad,
                        passed: config.moduleStats.all - config.moduleStats.bad,
                        total: config.moduleStats.all
                    });
                }
                config.previousModule = this.module;
                config.moduleStats = { all: 0, bad: 0 };
                runLoggingCallbacks("moduleStart", QUnit, {
                    name: this.module
                });
            } else if (config.autorun) {
                runLoggingCallbacks("moduleStart", QUnit, {
                    name: this.module
                });
            }

            config.current = this;

            this.testEnvironment = extend({
                setup: function () { },
                teardown: function () { }
            }, this.moduleTestEnvironment);

            runLoggingCallbacks("testStart", QUnit, {
                name: this.testName,
                module: this.module
            });

            // allow utility functions to access the current test environment
            // TODO why??
            QUnit.current_testEnvironment = this.testEnvironment;

            if (!config.pollution) {
                saveGlobal();
            }
            if (config.notrycatch) {
                this.testEnvironment.setup.call(this.testEnvironment);
                return;
            }
            try {
                this.testEnvironment.setup.call(this.testEnvironment);
            } catch (e) {
                QUnit.pushFailure("Setup failed on " + this.testName + ": " + e.message, extractStacktrace(e, 1));
            }
        },
        run: function () {
            config.current = this;

            var running = id("qunit-testresult");

            if (running) {
                running.innerHTML = "Running: <br/>" + this.name;
            }

            if (this.async) {
                QUnit.stop();
            }

            if (config.notrycatch) {
                this.callback.call(this.testEnvironment, QUnit.assert);
                return;
            }

            try {
                this.callback.call(this.testEnvironment, QUnit.assert);
            } catch (e) {
                QUnit.pushFailure("Died on test #" + (this.assertions.length + 1) + " " + this.stack + ": " + e.message, extractStacktrace(e, 0));
                // else next test will carry the responsibility
                saveGlobal();

                // Restart the tests if they're blocking
                if (config.blocking) {
                    QUnit.start();
                }
            }
        },
        teardown: function () {
            config.current = this;
            if (config.notrycatch) {
                this.testEnvironment.teardown.call(this.testEnvironment);
                return;
            } else {
                try {
                    this.testEnvironment.teardown.call(this.testEnvironment);
                } catch (e) {
                    QUnit.pushFailure("Teardown failed on " + this.testName + ": " + e.message, extractStacktrace(e, 1));
                }
            }
            checkPollution();
        },
        finish: function () {
            config.current = this;
            if (config.requireExpects && this.expected == null) {
                QUnit.pushFailure("Expected number of assertions to be defined, but expect() was not called.", this.stack);
            } else if (this.expected != null && this.expected != this.assertions.length) {
                QUnit.pushFailure("Expected " + this.expected + " assertions, but " + this.assertions.length + " were run", this.stack);
            } else if (this.expected == null && !this.assertions.length) {
                QUnit.pushFailure("Expected at least one assertion, but none were run - call expect(0) to accept zero assertions.", this.stack);
            }

            var assertion, a, b, i, li, ol,
			test = this,
			good = 0,
			bad = 0,
			tests = id("qunit-tests");

            config.stats.all += this.assertions.length;
            config.moduleStats.all += this.assertions.length;

            if (tests) {
                ol = document.createElement("ol");

                for (i = 0; i < this.assertions.length; i++) {
                    assertion = this.assertions[i];

                    li = document.createElement("li");
                    li.className = assertion.result ? "pass" : "fail";
                    li.innerHTML = assertion.message || (assertion.result ? "okay" : "failed");
                    ol.appendChild(li);

                    if (assertion.result) {
                        good++;
                    } else {
                        bad++;
                        config.stats.bad++;
                        config.moduleStats.bad++;
                    }
                }

                // store result when possible
                if (QUnit.config.reorder && defined.sessionStorage) {
                    if (bad) {
                        sessionStorage.setItem("qunit-test-" + this.module + "-" + this.testName, bad);
                    } else {
                        sessionStorage.removeItem("qunit-test-" + this.module + "-" + this.testName);
                    }
                }

                if (bad === 0) {
                    ol.style.display = "none";
                }

                // `b` initialized at top of scope
                b = document.createElement("strong");
                b.innerHTML = this.name + " <b class='counts'>(<b class='failed'>" + bad + "</b>, <b class='passed'>" + good + "</b>, " + this.assertions.length + ")</b>";

                addEvent(b, "click", function () {
                    var next = b.nextSibling.nextSibling,
					display = next.style.display;
                    next.style.display = display === "none" ? "block" : "none";
                });

                addEvent(b, "dblclick", function (e) {
                    var target = e && e.target ? e.target : window.event.srcElement;
                    if (target.nodeName.toLowerCase() == "span" || target.nodeName.toLowerCase() == "b") {
                        target = target.parentNode;
                    }
                    if (window.location && target.nodeName.toLowerCase() === "strong") {
                        window.location = QUnit.url({ testNumber: test.testNumber });
                    }
                });

                // `li` initialized at top of scope
                li = id(this.id);
                li.className = bad ? "fail" : "pass";
                li.removeChild(li.firstChild);
                a = li.firstChild;
                li.appendChild(b);
                li.appendChild(a);
                li.appendChild(ol);

            } else {
                for (i = 0; i < this.assertions.length; i++) {
                    if (!this.assertions[i].result) {
                        bad++;
                        config.stats.bad++;
                        config.moduleStats.bad++;
                    }
                }
            }

            runLoggingCallbacks("testDone", QUnit, {
                name: this.testName,
                module: this.module,
                failed: bad,
                passed: this.assertions.length - bad,
                total: this.assertions.length
            });

            QUnit.reset();

            config.current = undefined;
        },

        queue: function () {
            var bad,
			test = this;

            synchronize(function () {
                test.init();
            });
            function run() {
                // each of these can by async
                synchronize(function () {
                    test.setup();
                });
                synchronize(function () {
                    test.run();
                });
                synchronize(function () {
                    test.teardown();
                });
                synchronize(function () {
                    test.finish();
                });
            }

            // `bad` initialized at top of scope
            // defer when previous test run passed, if storage is available
            bad = QUnit.config.reorder && defined.sessionStorage &&
						+sessionStorage.getItem("qunit-test-" + this.module + "-" + this.testName);

            if (bad) {
                run();
            } else {
                synchronize(run, true);
            }
        }
    };

    // Root QUnit object.
    // `QUnit` initialized at top of scope
    QUnit = {

        // call on start of module test to prepend name to all tests
        module: function (name, testEnvironment) {
            config.currentModule = name;
            config.currentModuleTestEnviroment = testEnvironment;
        },

        asyncTest: function (testName, expected, callback) {
            if (arguments.length === 2) {
                callback = expected;
                expected = null;
            }

            QUnit.test(testName, expected, callback, true);
        },

        test: function (testName, expected, callback, async) {
            var test,
			name = "<span class='test-name'>" + escapeInnerText(testName) + "</span>";

            if (arguments.length === 2) {
                callback = expected;
                expected = null;
            }

            if (config.currentModule) {
                name = "<span class='module-name'>" + config.currentModule + "</span>: " + name;
            }

            test = new Test({
                name: name,
                testName: testName,
                expected: expected,
                async: async,
                callback: callback,
                module: config.currentModule,
                moduleTestEnvironment: config.currentModuleTestEnviroment,
                stack: sourceFromStacktrace(2)
            });

            if (!validTest(test)) {
                return;
            }

            test.queue();
        },

        // Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
        expect: function (asserts) {
            config.current.expected = asserts;
        },

        start: function (count) {
            config.semaphore -= count || 1;
            // don't start until equal number of stop-calls
            if (config.semaphore > 0) {
                return;
            }
            // ignore if start is called more often then stop
            if (config.semaphore < 0) {
                config.semaphore = 0;
            }
            // A slight delay, to avoid any current callbacks
            if (defined.setTimeout) {
                window.setTimeout(function () {
                    if (config.semaphore > 0) {
                        return;
                    }
                    if (config.timeout) {
                        clearTimeout(config.timeout);
                    }

                    config.blocking = false;
                    process(true);
                }, 13);
            } else {
                config.blocking = false;
                process(true);
            }
        },

        stop: function (count) {
            config.semaphore += count || 1;
            config.blocking = true;

            if (config.testTimeout && defined.setTimeout) {
                clearTimeout(config.timeout);
                config.timeout = window.setTimeout(function () {
                    QUnit.ok(false, "Test timed out");
                    config.semaphore = 1;
                    QUnit.start();
                }, config.testTimeout);
            }
        }
    };

    // Asssert helpers
    // All of these must call either QUnit.push() or manually do:
    // - runLoggingCallbacks( "log", .. );
    // - config.current.assertions.push({ .. });
    QUnit.assert = {
        /**
        * Asserts rough true-ish result.
        * @name ok
        * @function
        * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
        */
        ok: function (result, msg) {
            if (!config.current) {
                throw new Error("ok() assertion outside test context, was " + sourceFromStacktrace(2));
            }
            result = !!result;

            var source,
			details = {
			    result: result,
			    message: msg
			};

            msg = escapeInnerText(msg || (result ? "okay" : "failed"));
            msg = "<span class='test-message'>" + msg + "</span>";

            if (!result) {
                source = sourceFromStacktrace(2);
                if (source) {
                    details.source = source;
                    msg += "<table><tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText(source) + "</pre></td></tr></table>";
                }
            }
            runLoggingCallbacks("log", QUnit, details);
            config.current.assertions.push({
                result: result,
                message: msg
            });
        },

        /**
        * Assert that the first two arguments are equal, with an optional message.
        * Prints out both actual and expected values.
        * @name equal
        * @function
        * @example equal( format( "Received {0} bytes.", 2), "Received 2 bytes.", "format() replaces {0} with next argument" );
        */
        equal: function (actual, expected, message) {
            QUnit.push(expected == actual, actual, expected, message);
        },

        /**
        * @name notEqual
        * @function
        */
        notEqual: function (actual, expected, message) {
            QUnit.push(expected != actual, actual, expected, message);
        },

        /**
        * @name deepEqual
        * @function
        */
        deepEqual: function (actual, expected, message) {
            QUnit.push(QUnit.equiv(actual, expected), actual, expected, message);
        },

        /**
        * @name notDeepEqual
        * @function
        */
        notDeepEqual: function (actual, expected, message) {
            QUnit.push(!QUnit.equiv(actual, expected), actual, expected, message);
        },

        /**
        * @name strictEqual
        * @function
        */
        strictEqual: function (actual, expected, message) {
            QUnit.push(expected === actual, actual, expected, message);
        },

        /**
        * @name notStrictEqual
        * @function
        */
        notStrictEqual: function (actual, expected, message) {
            QUnit.push(expected !== actual, actual, expected, message);
        },

        throws: function (block, expected, message) {
            var actual,
			ok = false;

            // 'expected' is optional
            if (typeof expected === "string") {
                message = expected;
                expected = null;
            }

            config.current.ignoreGlobalErrors = true;
            try {
                block.call(config.current.testEnvironment);
            } catch (e) {
                actual = e;
            }
            config.current.ignoreGlobalErrors = false;

            if (actual) {
                // we don't want to validate thrown error
                if (!expected) {
                    ok = true;
                    // expected is a regexp
                } else if (QUnit.objectType(expected) === "regexp") {
                    ok = expected.test(actual);
                    // expected is a constructor
                } else if (actual instanceof expected) {
                    ok = true;
                    // expected is a validation function which returns true is validation passed
                } else if (expected.call({}, actual) === true) {
                    ok = true;
                }

                QUnit.push(ok, actual, null, message);
            } else {
                QUnit.pushFailure(message, null, 'No exception was thrown.');
            }
        }
    };

    /**
    * @deprecate since 1.8.0
    * Kept assertion helpers in root for backwards compatibility
    */
    extend(QUnit, QUnit.assert);

    /**
    * @deprecated since 1.9.0
    * Kept global "raises()" for backwards compatibility
    */
    QUnit.raises = QUnit.assert.throws;

    /**
    * @deprecated since 1.0.0, replaced with error pushes since 1.3.0
    * Kept to avoid TypeErrors for undefined methods.
    */
    QUnit.equals = function () {
        QUnit.push(false, false, false, "QUnit.equals has been deprecated since 2009 (e88049a0), use QUnit.equal instead");
    };
    QUnit.same = function () {
        QUnit.push(false, false, false, "QUnit.same has been deprecated since 2009 (e88049a0), use QUnit.deepEqual instead");
    };

    // We want access to the constructor's prototype
    (function () {
        function F() { }
        F.prototype = QUnit;
        QUnit = new F();
        // Make F QUnit's constructor so that we can add to the prototype later
        QUnit.constructor = F;
    } ());

    /**
    * Config object: Maintain internal state
    * Later exposed as QUnit.config
    * `config` initialized at top of scope
    */
    config = {
        // The queue of tests to run
        queue: [],

        // block until document ready
        blocking: true,

        // when enabled, show only failing tests
        // gets persisted through sessionStorage and can be changed in UI via checkbox
        hidepassed: false,

        // by default, run previously failed tests first
        // very useful in combination with "Hide passed tests" checked
        reorder: true,

        // by default, modify document.title when suite is done
        altertitle: true,

        // when enabled, all tests must call expect()
        requireExpects: false,

        // add checkboxes that are persisted in the query-string
        // when enabled, the id is set to `true` as a `QUnit.config` property
        urlConfig: [
		{
		    id: "noglobals",
		    label: "Check for Globals",
		    tooltip: "Enabling this will test if any test introduces new properties on the `window` object. Stored as query-strings."
		},
		{
		    id: "notrycatch",
		    label: "No try-catch",
		    tooltip: "Enabling this will run tests outside of a try-catch block. Makes debugging exceptions in IE reasonable. Stored as query-strings."
		}
	],

        // logging callback queues
        begin: [],
        done: [],
        log: [],
        testStart: [],
        testDone: [],
        moduleStart: [],
        moduleDone: []
    };

    // Initialize more QUnit.config and QUnit.urlParams
    (function () {
        var i,
		location = window.location || { search: "", protocol: "file:" },
		params = location.search.slice(1).split("&"),
		length = params.length,
		urlParams = {},
		current;

        if (params[0]) {
            for (i = 0; i < length; i++) {
                current = params[i].split("=");
                current[0] = decodeURIComponent(current[0]);
                // allow just a key to turn on a flag, e.g., test.html?noglobals
                current[1] = current[1] ? decodeURIComponent(current[1]) : true;
                urlParams[current[0]] = current[1];
            }
        }

        QUnit.urlParams = urlParams;

        // String search anywhere in moduleName+testName
        config.filter = urlParams.filter;

        // Exact match of the module name
        config.module = urlParams.module;

        config.testNumber = parseInt(urlParams.testNumber, 10) || null;

        // Figure out if we're running the tests from a server or not
        QUnit.isLocal = location.protocol === "file:";
    } ());

    // Export global variables, unless an 'exports' object exists,
    // in that case we assume we're in CommonJS (dealt with on the bottom of the script)
    if (typeof exports === "undefined") {
        extend(window, QUnit);

        // Expose QUnit object
        window.QUnit = QUnit;
    }

    // Extend QUnit object,
    // these after set here because they should not be exposed as global functions
    extend(QUnit, {
        config: config,

        // Initialize the configuration options
        init: function () {
            extend(config, {
                stats: { all: 0, bad: 0 },
                moduleStats: { all: 0, bad: 0 },
                started: +new Date(),
                updateRate: 1000,
                blocking: false,
                autostart: true,
                autorun: false,
                filter: "",
                queue: [],
                semaphore: 0
            });

            var tests, banner, result,
			qunit = id("qunit");

            if (qunit) {
                qunit.innerHTML =
				"<h1 id='qunit-header'>" + escapeInnerText(document.title) + "</h1>" +
				"<h2 id='qunit-banner'></h2>" +
				"<div id='qunit-testrunner-toolbar'></div>" +
				"<h2 id='qunit-userAgent'></h2>" +
				"<ol id='qunit-tests'></ol>";
            }

            tests = id("qunit-tests");
            banner = id("qunit-banner");
            result = id("qunit-testresult");

            if (tests) {
                tests.innerHTML = "";
            }

            if (banner) {
                banner.className = "";
            }

            if (result) {
                result.parentNode.removeChild(result);
            }

            if (tests) {
                result = document.createElement("p");
                result.id = "qunit-testresult";
                result.className = "result";
                tests.parentNode.insertBefore(result, tests);
                result.innerHTML = "Running...<br/>&nbsp;";
            }
        },

        // Resets the test setup. Useful for tests that modify the DOM.
        // If jQuery is available, uses jQuery's html(), otherwise just innerHTML.
        reset: function () {
            var fixture;

            if (window.jQuery) {
                jQuery("#qunit-fixture").html(config.fixture);
            } else {
                fixture = id("qunit-fixture");
                if (fixture) {
                    fixture.innerHTML = config.fixture;
                }
            }
        },

        // Trigger an event on an element.
        // @example triggerEvent( document.body, "click" );
        triggerEvent: function (elem, type, event) {
            if (document.createEvent) {
                event = document.createEvent("MouseEvents");
                event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
				0, 0, 0, 0, 0, false, false, false, false, 0, null);

                elem.dispatchEvent(event);
            } else if (elem.fireEvent) {
                elem.fireEvent("on" + type);
            }
        },

        // Safe object type checking
        is: function (type, obj) {
            return QUnit.objectType(obj) == type;
        },

        objectType: function (obj) {
            if (typeof obj === "undefined") {
                return "undefined";
                // consider: typeof null === object
            }
            if (obj === null) {
                return "null";
            }

            var type = toString.call(obj).match(/^\[object\s(.*)\]$/)[1] || "";

            switch (type) {
                case "Number":
                    if (isNaN(obj)) {
                        return "nan";
                    }
                    return "number";
                case "String":
                case "Boolean":
                case "Array":
                case "Date":
                case "RegExp":
                case "Function":
                    return type.toLowerCase();
            }
            if (typeof obj === "object") {
                return "object";
            }
            return undefined;
        },

        push: function (result, actual, expected, message) {
            if (!config.current) {
                throw new Error("assertion outside test context, was " + sourceFromStacktrace());
            }

            var output, source,
			details = {
			    result: result,
			    message: message,
			    actual: actual,
			    expected: expected
			};

            message = escapeInnerText(message) || (result ? "okay" : "failed");
            message = "<span class='test-message'>" + message + "</span>";
            output = message;

            if (!result) {
                expected = escapeInnerText(QUnit.jsDump.parse(expected));
                actual = escapeInnerText(QUnit.jsDump.parse(actual));
                output += "<table><tr class='test-expected'><th>Expected: </th><td><pre>" + expected + "</pre></td></tr>";

                if (actual != expected) {
                    output += "<tr class='test-actual'><th>Result: </th><td><pre>" + actual + "</pre></td></tr>";
                    output += "<tr class='test-diff'><th>Diff: </th><td><pre>" + QUnit.diff(expected, actual) + "</pre></td></tr>";
                }

                source = sourceFromStacktrace();

                if (source) {
                    details.source = source;
                    output += "<tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText(source) + "</pre></td></tr>";
                }

                output += "</table>";
            }

            runLoggingCallbacks("log", QUnit, details);

            config.current.assertions.push({
                result: !!result,
                message: output
            });
        },

        pushFailure: function (message, source, actual) {
            if (!config.current) {
                throw new Error("pushFailure() assertion outside test context, was " + sourceFromStacktrace(2));
            }

            var output,
			details = {
			    result: false,
			    message: message
			};

            message = escapeInnerText(message) || "error";
            message = "<span class='test-message'>" + message + "</span>";
            output = message;

            output += "<table>";

            if (actual) {
                output += "<tr class='test-actual'><th>Result: </th><td><pre>" + escapeInnerText(actual) + "</pre></td></tr>";
            }

            if (source) {
                details.source = source;
                output += "<tr class='test-source'><th>Source: </th><td><pre>" + escapeInnerText(source) + "</pre></td></tr>";
            }

            output += "</table>";

            runLoggingCallbacks("log", QUnit, details);

            config.current.assertions.push({
                result: false,
                message: output
            });
        },

        url: function (params) {
            params = extend(extend({}, QUnit.urlParams), params);
            var key,
			querystring = "?";

            for (key in params) {
                if (!hasOwn.call(params, key)) {
                    continue;
                }
                querystring += encodeURIComponent(key) + "=" +
				encodeURIComponent(params[key]) + "&";
            }
            return window.location.pathname + querystring.slice(0, -1);
        },

        extend: extend,
        id: id,
        addEvent: addEvent
        // load, equiv, jsDump, diff: Attached later
    });

    /**
    * @deprecated: Created for backwards compatibility with test runner that set the hook function
    * into QUnit.{hook}, instead of invoking it and passing the hook function.
    * QUnit.constructor is set to the empty F() above so that we can add to it's prototype here.
    * Doing this allows us to tell if the following methods have been overwritten on the actual
    * QUnit object.
    */
    extend(QUnit.constructor.prototype, {

        // Logging callbacks; all receive a single argument with the listed properties
        // run test/logs.html for any related changes
        begin: registerLoggingCallback("begin"),

        // done: { failed, passed, total, runtime }
        done: registerLoggingCallback("done"),

        // log: { result, actual, expected, message }
        log: registerLoggingCallback("log"),

        // testStart: { name }
        testStart: registerLoggingCallback("testStart"),

        // testDone: { name, failed, passed, total }
        testDone: registerLoggingCallback("testDone"),

        // moduleStart: { name }
        moduleStart: registerLoggingCallback("moduleStart"),

        // moduleDone: { name, failed, passed, total }
        moduleDone: registerLoggingCallback("moduleDone")
    });

    if (typeof document === "undefined" || document.readyState === "complete") {
        config.autorun = true;
    }

    QUnit.load = function () {
        runLoggingCallbacks("begin", QUnit, {});

        // Initialize the config, saving the execution queue
        var banner, filter, i, label, len, main, ol, toolbar, userAgent, val, urlConfigCheckboxes,
		urlConfigHtml = "",
		oldconfig = extend({}, config);

        QUnit.init();
        extend(config, oldconfig);

        config.blocking = false;

        len = config.urlConfig.length;

        for (i = 0; i < len; i++) {
            val = config.urlConfig[i];
            if (typeof val === "string") {
                val = {
                    id: val,
                    label: val,
                    tooltip: "[no tooltip available]"
                };
            }
            config[val.id] = QUnit.urlParams[val.id];
            urlConfigHtml += "<input id='qunit-urlconfig-" + val.id + "' name='" + val.id + "' type='checkbox'" + (config[val.id] ? " checked='checked'" : "") + " title='" + val.tooltip + "'><label for='qunit-urlconfig-" + val.id + "' title='" + val.tooltip + "'>" + val.label + "</label>";
        }

        // `userAgent` initialized at top of scope
        userAgent = id("qunit-userAgent");
        if (userAgent) {
            userAgent.innerHTML = navigator.userAgent;
        }

        // `banner` initialized at top of scope
        banner = id("qunit-header");
        if (banner) {
            banner.innerHTML = "<a href='" + QUnit.url({ filter: undefined, module: undefined, testNumber: undefined }) + "'>" + banner.innerHTML + "</a> ";
        }

        // `toolbar` initialized at top of scope
        toolbar = id("qunit-testrunner-toolbar");
        if (toolbar) {
            // `filter` initialized at top of scope
            filter = document.createElement("input");
            filter.type = "checkbox";
            filter.id = "qunit-filter-pass";

            addEvent(filter, "click", function () {
                var tmp,
				ol = document.getElementById("qunit-tests");

                if (filter.checked) {
                    ol.className = ol.className + " hidepass";
                } else {
                    tmp = " " + ol.className.replace(/[\n\t\r]/g, " ") + " ";
                    ol.className = tmp.replace(/ hidepass /, " ");
                }
                if (defined.sessionStorage) {
                    if (filter.checked) {
                        sessionStorage.setItem("qunit-filter-passed-tests", "true");
                    } else {
                        sessionStorage.removeItem("qunit-filter-passed-tests");
                    }
                }
            });

            if (config.hidepassed || defined.sessionStorage && sessionStorage.getItem("qunit-filter-passed-tests")) {
                filter.checked = true;
                // `ol` initialized at top of scope
                ol = document.getElementById("qunit-tests");
                ol.className = ol.className + " hidepass";
            }
            toolbar.appendChild(filter);

            // `label` initialized at top of scope
            label = document.createElement("label");
            label.setAttribute("for", "qunit-filter-pass");
            label.setAttribute("title", "Only show tests and assertons that fail. Stored in sessionStorage.");
            label.innerHTML = "Hide passed tests";
            toolbar.appendChild(label);

            urlConfigCheckboxes = document.createElement('span');
            urlConfigCheckboxes.innerHTML = urlConfigHtml;
            addEvent(urlConfigCheckboxes, "change", function (event) {
                var params = {};
                params[event.target.name] = event.target.checked ? true : undefined;
                window.location = QUnit.url(params);
            });
            toolbar.appendChild(urlConfigCheckboxes);
        }

        // `main` initialized at top of scope
        main = id("qunit-fixture");
        if (main) {
            config.fixture = main.innerHTML;
        }

        if (config.autostart) {
            QUnit.start();
        }
    };

    addEvent(window, "load", QUnit.load);

    // `onErrorFnPrev` initialized at top of scope
    // Preserve other handlers
    onErrorFnPrev = window.onerror;

    // Cover uncaught exceptions
    // Returning true will surpress the default browser handler,
    // returning false will let it run.
    window.onerror = function (error, filePath, linerNr) {
        var ret = false;
        if (onErrorFnPrev) {
            ret = onErrorFnPrev(error, filePath, linerNr);
        }

        // Treat return value as window.onerror itself does,
        // Only do our handling if not surpressed.
        if (ret !== true) {
            if (QUnit.config.current) {
                if (QUnit.config.current.ignoreGlobalErrors) {
                    return true;
                }
                QUnit.pushFailure(error, filePath + ":" + linerNr);
            } else {
                QUnit.test("global failure", function () {
                    QUnit.pushFailure(error, filePath + ":" + linerNr);
                });
            }
            return false;
        }

        return ret;
    };

    function done() {
        config.autorun = true;

        // Log the last module results
        if (config.currentModule) {
            runLoggingCallbacks("moduleDone", QUnit, {
                name: config.currentModule,
                failed: config.moduleStats.bad,
                passed: config.moduleStats.all - config.moduleStats.bad,
                total: config.moduleStats.all
            });
        }

        var i, key,
		banner = id("qunit-banner"),
		tests = id("qunit-tests"),
		runtime = +new Date() - config.started,
		passed = config.stats.all - config.stats.bad,
		html = [
			"Tests completed in ",
			runtime,
			" milliseconds.<br/>",
			"<span class='passed'>",
			passed,
			"</span> tests of <span class='total'>",
			config.stats.all,
			"</span> passed, <span class='failed'>",
			config.stats.bad,
			"</span> failed."
		].join("");

        if (banner) {
            banner.className = (config.stats.bad ? "qunit-fail" : "qunit-pass");
        }

        if (tests) {
            id("qunit-testresult").innerHTML = html;
        }

        if (config.altertitle && typeof document !== "undefined" && document.title) {
            // show ✖ for good, ✔ for bad suite result in title
            // use escape sequences in case file gets loaded with non-utf-8-charset
            document.title = [
			(config.stats.bad ? "\u2716" : "\u2714"),
			document.title.replace(/^[\u2714\u2716] /i, "")
		].join(" ");
        }

        // clear own sessionStorage items if all tests passed
        if (config.reorder && defined.sessionStorage && config.stats.bad === 0) {
            // `key` & `i` initialized at top of scope
            for (i = 0; i < sessionStorage.length; i++) {
                key = sessionStorage.key(i++);
                if (key.indexOf("qunit-test-") === 0) {
                    sessionStorage.removeItem(key);
                }
            }
        }

        runLoggingCallbacks("done", QUnit, {
            failed: config.stats.bad,
            passed: passed,
            total: config.stats.all,
            runtime: runtime
        });
    }

    /** @return Boolean: true if this test should be ran */
    function validTest(test) {
        var include,
		filter = config.filter && config.filter.toLowerCase(),
		module = config.module && config.module.toLowerCase(),
		fullName = (test.module + ": " + test.testName).toLowerCase();

        if (config.testNumber) {
            return test.testNumber === config.testNumber;
        }

        if (module && (!test.module || test.module.toLowerCase() !== module)) {
            return false;
        }

        if (!filter) {
            return true;
        }

        include = filter.charAt(0) !== "!";
        if (!include) {
            filter = filter.slice(1);
        }

        // If the filter matches, we need to honour include
        if (fullName.indexOf(filter) !== -1) {
            return include;
        }

        // Otherwise, do the opposite
        return !include;
    }

    // so far supports only Firefox, Chrome and Opera (buggy), Safari (for real exceptions)
    // Later Safari and IE10 are supposed to support error.stack as well
    // See also https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error/Stack
    function extractStacktrace(e, offset) {
        offset = offset === undefined ? 3 : offset;

        var stack, include, i, regex;

        if (e.stacktrace) {
            // Opera
            return e.stacktrace.split("\n")[offset + 3];
        } else if (e.stack) {
            // Firefox, Chrome
            stack = e.stack.split("\n");
            if (/^error$/i.test(stack[0])) {
                stack.shift();
            }
            if (fileName) {
                include = [];
                for (i = offset; i < stack.length; i++) {
                    if (stack[i].indexOf(fileName) != -1) {
                        break;
                    }
                    include.push(stack[i]);
                }
                if (include.length) {
                    return include.join("\n");
                }
            }
            return stack[offset];
        } else if (e.sourceURL) {
            // Safari, PhantomJS
            // hopefully one day Safari provides actual stacktraces
            // exclude useless self-reference for generated Error objects
            if (/qunit.js$/.test(e.sourceURL)) {
                return;
            }
            // for actual exceptions, this is useful
            return e.sourceURL + ":" + e.line;
        }
    }
    function sourceFromStacktrace(offset) {
        try {
            throw new Error();
        } catch (e) {
            return extractStacktrace(e, offset);
        }
    }

    function escapeInnerText(s) {
        if (!s) {
            return "";
        }
        s = s + "";
        return s.replace(/[\&<>]/g, function (s) {
            switch (s) {
                case "&": return "&amp;";
                case "<": return "&lt;";
                case ">": return "&gt;";
                default: return s;
            }
        });
    }

    function synchronize(callback, last) {
        config.queue.push(callback);

        if (config.autorun && !config.blocking) {
            process(last);
        }
    }

    function process(last) {
        function next() {
            process(last);
        }
        var start = new Date().getTime();
        config.depth = config.depth ? config.depth + 1 : 1;

        while (config.queue.length && !config.blocking) {
            if (!defined.setTimeout || config.updateRate <= 0 || ((new Date().getTime() - start) < config.updateRate)) {
                config.queue.shift()();
            } else {
                window.setTimeout(next, 13);
                break;
            }
        }
        config.depth--;
        if (last && !config.blocking && !config.queue.length && config.depth === 0) {
            done();
        }
    }

    function saveGlobal() {
        config.pollution = [];

        if (config.noglobals) {
            for (var key in window) {
                // in Opera sometimes DOM element ids show up here, ignore them
                if (!hasOwn.call(window, key) || /^qunit-test-output/.test(key)) {
                    continue;
                }
                config.pollution.push(key);
            }
        }
    }

    function checkPollution(name) {
        var newGlobals,
		deletedGlobals,
		old = config.pollution;

        saveGlobal();

        newGlobals = diff(config.pollution, old);
        if (newGlobals.length > 0) {
            QUnit.pushFailure("Introduced global variable(s): " + newGlobals.join(", "));
        }

        deletedGlobals = diff(old, config.pollution);
        if (deletedGlobals.length > 0) {
            QUnit.pushFailure("Deleted global variable(s): " + deletedGlobals.join(", "));
        }
    }

    // returns a new Array with the elements that are in a but not in b
    function diff(a, b) {
        var i, j,
		result = a.slice();

        for (i = 0; i < result.length; i++) {
            for (j = 0; j < b.length; j++) {
                if (result[i] === b[j]) {
                    result.splice(i, 1);
                    i--;
                    break;
                }
            }
        }
        return result;
    }

    function extend(a, b) {
        for (var prop in b) {
            if (b[prop] === undefined) {
                delete a[prop];

                // Avoid "Member not found" error in IE8 caused by setting window.constructor
            } else if (prop !== "constructor" || a !== window) {
                a[prop] = b[prop];
            }
        }

        return a;
    }

    function addEvent(elem, type, fn) {
        if (elem.addEventListener) {
            elem.addEventListener(type, fn, false);
        } else if (elem.attachEvent) {
            elem.attachEvent("on" + type, fn);
        } else {
            fn();
        }
    }

    function id(name) {
        return !!(typeof document !== "undefined" && document && document.getElementById) &&
		document.getElementById(name);
    }

    function registerLoggingCallback(key) {
        return function (callback) {
            config[key].push(callback);
        };
    }

    // Supports deprecated method of completely overwriting logging callbacks
    function runLoggingCallbacks(key, scope, args) {
        //debugger;
        var i, callbacks;
        if (QUnit.hasOwnProperty(key)) {
            QUnit[key].call(scope, args);
        } else {
            callbacks = config[key];
            for (i = 0; i < callbacks.length; i++) {
                callbacks[i].call(scope, args);
            }
        }
    }

    // Test for equality any JavaScript type.
    // Author: Philippe Rathé <prathe@gmail.com>
    QUnit.equiv = (function () {

        // Call the o related callback with the given arguments.
        function bindCallbacks(o, callbacks, args) {
            var prop = QUnit.objectType(o);
            if (prop) {
                if (QUnit.objectType(callbacks[prop]) === "function") {
                    return callbacks[prop].apply(callbacks, args);
                } else {
                    return callbacks[prop]; // or undefined
                }
            }
        }

        // the real equiv function
        var innerEquiv,
        // stack to decide between skip/abort functions
		callers = [],
        // stack to avoiding loops from circular referencing
		parents = [],

		getProto = Object.getPrototypeOf || function (obj) {
		    return obj.__proto__;
		},
		callbacks = (function () {

		    // for string, boolean, number and null
		    function useStrictEquality(b, a) {
		        if (b instanceof a.constructor || a instanceof b.constructor) {
		            // to catch short annotaion VS 'new' annotation of a
		            // declaration
		            // e.g. var i = 1;
		            // var j = new Number(1);
		            return a == b;
		        } else {
		            return a === b;
		        }
		    }

		    return {
		        "string": useStrictEquality,
		        "boolean": useStrictEquality,
		        "number": useStrictEquality,
		        "null": useStrictEquality,
		        "undefined": useStrictEquality,

		        "nan": function (b) {
		            return isNaN(b);
		        },

		        "date": function (b, a) {
		            return QUnit.objectType(b) === "date" && a.valueOf() === b.valueOf();
		        },

		        "regexp": function (b, a) {
		            return QUnit.objectType(b) === "regexp" &&
		            // the regex itself
						a.source === b.source &&
		            // and its modifers
						a.global === b.global &&
		            // (gmi) ...
						a.ignoreCase === b.ignoreCase &&
						a.multiline === b.multiline;
		        },

		        // - skip when the property is a method of an instance (OOP)
		        // - abort otherwise,
		        // initial === would have catch identical references anyway
		        "function": function () {
		            var caller = callers[callers.length - 1];
		            return caller !== Object && typeof caller !== "undefined";
		        },

		        "array": function (b, a) {
		            var i, j, len, loop;

		            // b could be an object literal here
		            if (QUnit.objectType(b) !== "array") {
		                return false;
		            }

		            len = a.length;
		            if (len !== b.length) {
		                // safe and faster
		                return false;
		            }

		            // track reference to avoid circular references
		            parents.push(a);
		            for (i = 0; i < len; i++) {
		                loop = false;
		                for (j = 0; j < parents.length; j++) {
		                    if (parents[j] === a[i]) {
		                        loop = true; // dont rewalk array
		                    }
		                }
		                if (!loop && !innerEquiv(a[i], b[i])) {
		                    parents.pop();
		                    return false;
		                }
		            }
		            parents.pop();
		            return true;
		        },

		        "object": function (b, a) {
		            var i, j, loop,
		            // Default to true
						eq = true,
						aProperties = [],
						bProperties = [];

		            // comparing constructors is more strict than using
		            // instanceof
		            if (a.constructor !== b.constructor) {
		                // Allow objects with no prototype to be equivalent to
		                // objects with Object as their constructor.
		                if (!((getProto(a) === null && getProto(b) === Object.prototype) ||
							(getProto(b) === null && getProto(a) === Object.prototype))) {
		                    return false;
		                }
		            }

		            // stack constructor before traversing properties
		            callers.push(a.constructor);
		            // track reference to avoid circular references
		            parents.push(a);

		            for (i in a) { // be strict: don't ensures hasOwnProperty
		                // and go deep
		                loop = false;
		                for (j = 0; j < parents.length; j++) {
		                    if (parents[j] === a[i]) {
		                        // don't go down the same path twice
		                        loop = true;
		                    }
		                }
		                aProperties.push(i); // collect a's properties

		                if (!loop && !innerEquiv(a[i], b[i])) {
		                    eq = false;
		                    break;
		                }
		            }

		            callers.pop(); // unstack, we are done
		            parents.pop();

		            for (i in b) {
		                bProperties.push(i); // collect b's properties
		            }

		            // Ensures identical properties name
		            return eq && innerEquiv(aProperties.sort(), bProperties.sort());
		        }
		    };
		} ());

        innerEquiv = function () { // can take multiple arguments
            var args = [].slice.apply(arguments);
            if (args.length < 2) {
                return true; // end transition
            }

            return (function (a, b) {
                if (a === b) {
                    return true; // catch the most you can
                } else if (a === null || b === null || typeof a === "undefined" ||
					typeof b === "undefined" ||
					QUnit.objectType(a) !== QUnit.objectType(b)) {
                    return false; // don't lose time with error prone cases
                } else {
                    return bindCallbacks(a, callbacks, [b, a]);
                }

                // apply transition with (1..n) arguments
            } (args[0], args[1]) && arguments.callee.apply(this, args.splice(1, args.length - 1)));
        };

        return innerEquiv;
    } ());

    /**
    * jsDump Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com |
    * http://flesler.blogspot.com Licensed under BSD
    * (http://www.opensource.org/licenses/bsd-license.php) Date: 5/15/2008
    *
    * @projectDescription Advanced and extensible data dumping for Javascript.
    * @version 1.0.0
    * @author Ariel Flesler
    * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
    */
    QUnit.jsDump = (function () {
        function quote(str) {
            return '"' + str.toString().replace(/"/g, '\\"') + '"';
        }
        function literal(o) {
            return o + "";
        }
        function join(pre, arr, post) {
            var s = jsDump.separator(),
			base = jsDump.indent(),
			inner = jsDump.indent(1);
            if (arr.join) {
                arr = arr.join("," + s + inner);
            }
            if (!arr) {
                return pre + post;
            }
            return [pre, inner + arr, base + post].join(s);
        }
        function array(arr, stack) {
            var i = arr.length, ret = new Array(i);
            this.up();
            while (i--) {
                ret[i] = this.parse(arr[i], undefined, stack);
            }
            this.down();
            return join("[", ret, "]");
        }

        var reName = /^function (\w+)/,
		jsDump = {
		    parse: function (obj, type, stack) { //type is used mostly internally, you can fix a (custom)type in advance
		        stack = stack || [];
		        var inStack, res,
					parser = this.parsers[type || this.typeOf(obj)];

		        type = typeof parser;
		        inStack = inArray(obj, stack);

		        if (inStack != -1) {
		            return "recursion(" + (inStack - stack.length) + ")";
		        }
		        //else
		        if (type == "function") {
		            stack.push(obj);
		            res = parser.call(this, obj, stack);
		            stack.pop();
		            return res;
		        }
		        // else
		        return (type == "string") ? parser : this.parsers.error;
		    },
		    typeOf: function (obj) {
		        var type;
		        if (obj === null) {
		            type = "null";
		        } else if (typeof obj === "undefined") {
		            type = "undefined";
		        } else if (QUnit.is("regexp", obj)) {
		            type = "regexp";
		        } else if (QUnit.is("date", obj)) {
		            type = "date";
		        } else if (QUnit.is("function", obj)) {
		            type = "function";
		        } else if (typeof obj.setInterval !== undefined && typeof obj.document !== "undefined" && typeof obj.nodeType === "undefined") {
		            type = "window";
		        } else if (obj.nodeType === 9) {
		            type = "document";
		        } else if (obj.nodeType) {
		            type = "node";
		        } else if (
		        // native arrays
					toString.call(obj) === "[object Array]" ||
		        // NodeList objects
					(typeof obj.length === "number" && typeof obj.item !== "undefined" && (obj.length ? obj.item(0) === obj[0] : (obj.item(0) === null && typeof obj[0] === "undefined")))
				) {
		            type = "array";
		        } else {
		            type = typeof obj;
		        }
		        return type;
		    },
		    separator: function () {
		        return this.multiline ? this.HTML ? "<br />" : "\n" : this.HTML ? "&nbsp;" : " ";
		    },
		    indent: function (extra) {// extra can be a number, shortcut for increasing-calling-decreasing
		        if (!this.multiline) {
		            return "";
		        }
		        var chr = this.indentChar;
		        if (this.HTML) {
		            chr = chr.replace(/\t/g, "   ").replace(/ /g, "&nbsp;");
		        }
		        return new Array(this._depth_ + (extra || 0)).join(chr);
		    },
		    up: function (a) {
		        this._depth_ += a || 1;
		    },
		    down: function (a) {
		        this._depth_ -= a || 1;
		    },
		    setParser: function (name, parser) {
		        this.parsers[name] = parser;
		    },
		    // The next 3 are exposed so you can use them
		    quote: quote,
		    literal: literal,
		    join: join,
		    //
		    _depth_: 1,
		    // This is the list of parsers, to modify them, use jsDump.setParser
		    parsers: {
		        window: "[Window]",
		        document: "[Document]",
		        error: "[ERROR]", //when no parser is found, shouldn"t happen
		        unknown: "[Unknown]",
		        "null": "null",
		        "undefined": "undefined",
		        "function": function (fn) {
		            var ret = "function",
						name = "name" in fn ? fn.name : (reName.exec(fn) || [])[1]; //functions never have name in IE

		            if (name) {
		                ret += " " + name;
		            }
		            ret += "( ";

		            ret = [ret, QUnit.jsDump.parse(fn, "functionArgs"), "){"].join("");
		            return join(ret, QUnit.jsDump.parse(fn, "functionCode"), "}");
		        },
		        array: array,
		        nodelist: array,
		        "arguments": array,
		        object: function (map, stack) {
		            var ret = [], keys, key, val, i;
		            QUnit.jsDump.up();
		            if (Object.keys) {
		                keys = Object.keys(map);
		            } else {
		                keys = [];
		                for (key in map) {
		                    keys.push(key);
		                }
		            }
		            keys.sort();
		            for (i = 0; i < keys.length; i++) {
		                key = keys[i];
		                val = map[key];
		                ret.push(QUnit.jsDump.parse(key, "key") + ": " + QUnit.jsDump.parse(val, undefined, stack));
		            }
		            QUnit.jsDump.down();
		            return join("{", ret, "}");
		        },
		        node: function (node) {
		            var a, val,
						open = QUnit.jsDump.HTML ? "&lt;" : "<",
						close = QUnit.jsDump.HTML ? "&gt;" : ">",
						tag = node.nodeName.toLowerCase(),
						ret = open + tag;

		            for (a in QUnit.jsDump.DOMAttrs) {
		                val = node[QUnit.jsDump.DOMAttrs[a]];
		                if (val) {
		                    ret += " " + a + "=" + QUnit.jsDump.parse(val, "attribute");
		                }
		            }
		            return ret + close + open + "/" + tag + close;
		        },
		        functionArgs: function (fn) {//function calls it internally, it's the arguments part of the function
		            var args,
						l = fn.length;

		            if (!l) {
		                return "";
		            }

		            args = new Array(l);
		            while (l--) {
		                args[l] = String.fromCharCode(97 + l); //97 is 'a'
		            }
		            return " " + args.join(", ") + " ";
		        },
		        key: quote, //object calls it internally, the key part of an item in a map
		        functionCode: "[code]", //function calls it internally, it's the content of the function
		        attribute: quote, //node calls it internally, it's an html attribute value
		        string: quote,
		        date: quote,
		        regexp: literal, //regex
		        number: literal,
		        "boolean": literal
		    },
		    DOMAttrs: {
		        //attributes to dump from nodes, name=>realName
		        id: "id",
		        name: "name",
		        "class": "className"
		    },
		    HTML: false, //if true, entities are escaped ( <, >, \t, space and \n )
		    indentChar: "  ", //indentation unit
		    multiline: true //if true, items in a collection, are separated by a \n, else just a space.
		};

        return jsDump;
    } ());

    // from Sizzle.js
    function getText(elems) {
        var i, elem,
		ret = "";

        for (i = 0; elems[i]; i++) {
            elem = elems[i];

            // Get the text from text nodes and CDATA nodes
            if (elem.nodeType === 3 || elem.nodeType === 4) {
                ret += elem.nodeValue;

                // Traverse everything else, except comment nodes
            } else if (elem.nodeType !== 8) {
                ret += getText(elem.childNodes);
            }
        }

        return ret;
    }

    // from jquery.js
    function inArray(elem, array) {
        if (array.indexOf) {
            return array.indexOf(elem);
        }

        for (var i = 0, length = array.length; i < length; i++) {
            if (array[i] === elem) {
                return i;
            }
        }

        return -1;
    }

    /*
    * Javascript Diff Algorithm
    *  By John Resig (http://ejohn.org/)
    *  Modified by Chu Alan "sprite"
    *
    * Released under the MIT license.
    *
    * More Info:
    *  http://ejohn.org/projects/javascript-diff-algorithm/
    *
    * Usage: QUnit.diff(expected, actual)
    *
    * QUnit.diff( "the quick brown fox jumped over", "the quick fox jumps over" ) == "the  quick <del>brown </del> fox <del>jumped </del><ins>jumps </ins> over"
    */
    QUnit.diff = (function () {
        function diff(o, n) {
            var i,
			ns = {},
			os = {};

            for (i = 0; i < n.length; i++) {
                if (ns[n[i]] == null) {
                    ns[n[i]] = {
                        rows: [],
                        o: null
                    };
                }
                ns[n[i]].rows.push(i);
            }

            for (i = 0; i < o.length; i++) {
                if (os[o[i]] == null) {
                    os[o[i]] = {
                        rows: [],
                        n: null
                    };
                }
                os[o[i]].rows.push(i);
            }

            for (i in ns) {
                if (!hasOwn.call(ns, i)) {
                    continue;
                }
                if (ns[i].rows.length == 1 && typeof os[i] != "undefined" && os[i].rows.length == 1) {
                    n[ns[i].rows[0]] = {
                        text: n[ns[i].rows[0]],
                        row: os[i].rows[0]
                    };
                    o[os[i].rows[0]] = {
                        text: o[os[i].rows[0]],
                        row: ns[i].rows[0]
                    };
                }
            }

            for (i = 0; i < n.length - 1; i++) {
                if (n[i].text != null && n[i + 1].text == null && n[i].row + 1 < o.length && o[n[i].row + 1].text == null &&
						n[i + 1] == o[n[i].row + 1]) {

                    n[i + 1] = {
                        text: n[i + 1],
                        row: n[i].row + 1
                    };
                    o[n[i].row + 1] = {
                        text: o[n[i].row + 1],
                        row: i + 1
                    };
                }
            }

            for (i = n.length - 1; i > 0; i--) {
                if (n[i].text != null && n[i - 1].text == null && n[i].row > 0 && o[n[i].row - 1].text == null &&
						n[i - 1] == o[n[i].row - 1]) {

                    n[i - 1] = {
                        text: n[i - 1],
                        row: n[i].row - 1
                    };
                    o[n[i].row - 1] = {
                        text: o[n[i].row - 1],
                        row: i - 1
                    };
                }
            }

            return {
                o: o,
                n: n
            };
        }

        return function (o, n) {
            o = o.replace(/\s+$/, "");
            n = n.replace(/\s+$/, "");

            var i, pre,
			str = "",
			out = diff(o === "" ? [] : o.split(/\s+/), n === "" ? [] : n.split(/\s+/)),
			oSpace = o.match(/\s+/g),
			nSpace = n.match(/\s+/g);

            if (oSpace == null) {
                oSpace = [" "];
            }
            else {
                oSpace.push(" ");
            }

            if (nSpace == null) {
                nSpace = [" "];
            }
            else {
                nSpace.push(" ");
            }

            if (out.n.length === 0) {
                for (i = 0; i < out.o.length; i++) {
                    str += "<del>" + out.o[i] + oSpace[i] + "</del>";
                }
            }
            else {
                if (out.n[0].text == null) {
                    for (n = 0; n < out.o.length && out.o[n].text == null; n++) {
                        str += "<del>" + out.o[n] + oSpace[n] + "</del>";
                    }
                }

                for (i = 0; i < out.n.length; i++) {
                    if (out.n[i].text == null) {
                        str += "<ins>" + out.n[i] + nSpace[i] + "</ins>";
                    }
                    else {
                        // `pre` initialized at top of scope
                        pre = "";

                        for (n = out.n[i].row + 1; n < out.o.length && out.o[n].text == null; n++) {
                            pre += "<del>" + out.o[n] + oSpace[n] + "</del>";
                        }
                        str += " " + out.n[i].text + nSpace[i] + pre;
                    }
                }
            }

            return str;
        };
    } ());

    // for CommonJS enviroments, export everything
    if (typeof exports !== "undefined") {
        extend(exports, QUnit);
    }

    // get at whatever the global object is, like window in browsers
} ((function () { return this; } .call())));
